CDKN1C p.Pro281=
c.843C>G · rs773166985 · VCV454039
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 8.72e-05%, nfe)
Conditions
1
Beckwith-Wiedemann syndrome
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| REVEL | 0.134 | moderately benign-leaning |
|---|---|---|
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
| Constraint at this position | ||
| Conservation | phyloP -0.21 | GERP -1.8 |
| Overall | ||
| CADD | 5.886 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
8.72e-05%
European (non-Finnish) · 1/1,147,238 alleles
Overall
7.16e-05%
1/1,396,268 alleles · very rare
Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.
Variant & gene context
- Gene
- CDKN1C
- Protein
- p.Pro281=
- Coding
- c.843C>G
- MANE Select
- NM_001122630
- dbSNP
- rs773166985
- Type
- single nucleotide variant
- Location
- chr11:2884079 (GRCh38)
- Gene constraint
- LOEUF 1.943 · pLI <0.01 · ClinGen HI 3/3 (gnomAD)
- Structure
- AlphaFold pLDDT 63.93
- Residue 281
- the 'disordered' region
Similar variants
- CDKN1C p.Pro281Ala Uncertain significance ★★ ⚠ same residue
- CDKN1C p.Pro281Arg Uncertain significance ★ ⚠ same residue
- CDKN1C p.Pro281Leu Uncertain significance ★ ⚠ same residue
- CDKN1C p.Asp263Asn Pathogenic ★★ ⚠ same condition
- CDKN1C p.Cys19Ter Pathogenic/Likely pathogenic ★★ same condition
- CDKN1C p.Gln219Ter Pathogenic ★★ same condition
- CDKN1C p.Gln221Ter Pathogenic ★★ same condition
- CDKN1C p.Gln230Ter Pathogenic ★★ same condition
Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →
Cite Sugi Variant
Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/cdkn1c-p-pro281 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown